According to Greenwood, the MiniDisc tapes belonged to Yorke, 50, and were “never intended for public consumption.”

However “instead of complaining — much — or ignoring it,” as Greenwood said, the Creep rockers decided to release it in benefit of a cause important to them.

Jonny Greenwood of Radiohead performing at the Coachella Valley Music and Arts Festival in Indio, Calif.

Chris Pizzello / (AP Photo

Although some of the songs in question made the cut for 2017’s massive OK Computer reissue, OKNOTOK, most cuts from the more than two-decades-old sessions were “never intended for public consumption,” which is why the group made them downloadable for only a limited time.

The files are available “just for the next 18 days,” revealed Greenwood in the note. “So for £18 you can find out if we should have paid that ransom,” he joked.

“It’s not v interesting,” wrote Yorke, on Radiohead’s Bandcamp page. “There’s a lot of it.”

“As it’s out there,” he continued, “it may as well be out there, until we all get bored and move on.”

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While all tracks are now up for grabs, their lengths range widely and contain a variety of different songs within themselves. The shortest cut lasts 17 minutes, while the longest is a whopping 1 hour and 13 minutes.

Each track contains a number of demos, unfinished songs, band rehearsals or sounds — which for the most part — never made it to OK Computer (1997).